CN102143577B - Location method and base station controller - Google Patents
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- CN102143577B CN102143577B CN201010589613.5A CN201010589613A CN102143577B CN 102143577 B CN102143577 B CN 102143577B CN 201010589613 A CN201010589613 A CN 201010589613A CN 102143577 B CN102143577 B CN 102143577B
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Abstract
The invention discloses a location method and a base station controller and belongs to the field of location. The method comprises the following steps of: receiving a location request message sent by a mobile switching center (MSC) by the base station controller (BSC); acquiring an uplink time difference of arrival (U-TDOA) location type indication; selecting a base transceiver station (BTS)/ a location measure unit (LMU) for a time of arrival (TOA) measurement required for U-TDOA location; sending a TOA measurement-executing massage to the selected BTS/LMU so that the selected BTS/LMU measures a target terminal to obtain a measuring result and returns the measuring result; receiving the measuring result returned by the selected BTS/LMU; performing a location computation according to the measuring result to obtain position information of the target terminal; and sending a location response message to the MSC, wherein the location response message carries the position information of the target terminal. The device comprises a receiving module, an acquiring and selecting module, a first sending module, a computing module and a second sending module. By the scheme, a serving mobile location center (SMLC) is not required to take part in location and the BSC can control whether to use the U-TDOA location method.
Description
Technical field
The present invention relates to positioning field, particularly a kind of localization method and base station controller.
Background technology
Positioning service can provide the positioning service of different service quality for user, as information such as the plane of target terminal or three-dimensional position, speed, its precision maximum can reach horizontal 10 meters, longitudinal 5 meters, can help operator to dispose location-based value-added service.
Have at present a kind of U-TDOA (Uplink Time Difference ofArrival, up arrival time difference) localization method, the method comprises the following steps:
BSC (Base Station Controller, base station controller) receive MSC (Mobile SwitchingCenter, mobile switching centre) after Location Request, to SMLC (Serving Mo bile Location Center, Serving Mobile Location Center), send Location Request.If SMLC judgement is used U-TDOA mode to position, to BSC, send U-TDOA request message, request is carried out U-TDOA location to target terminal, BSC responds this request message, return to U-TDOA response message to SMLC, the information such as the physical channel that response message comprises current MS, TA (Timing Advance, Timing Advance), target terminal power, cell ID, encryption.According to above-mentioned information, the LMU (Location Measure Unit, Location Measurement Unit) that the selected U-TDOA of the participation required participation TOA in location of SMLC (Time of Arrival, the time of advent) measures, and transmission is carried out TOA message to these LMU.LMU completes measurement, and measurement result is reported to SMLC.After SMLC gathers, according to measurement result, carry out the positional information that corresponding location Calculation obtains target terminal.SMLC sends to BSC by the positional information of target terminal, and BSC sends to MSC by the positional information of target terminal again.
In sum, prior art determines whether adopt U-TDOA localization method by SMLC, when SMLC is third party device, cannot control whether adopt U-TDOA localization method by BSC.
Summary of the invention
While being third party device in order to solve SMLC, the uncontrollable problem that whether adopts U-TDOA localization method of BSC, the embodiment of the present invention provides a kind of localization method and base station controller.
This technical scheme is as follows:
A localization method, described method comprises:
Base station controller BSC receives the locating request message that moving exchanging center MSC sends;
Described BSC obtains up arrival time difference U-TDOA align_type indication, and selected U-TDOA locates required participation and arrives the base transceiver station BTS/ Location Measurement Unit LMU that time T OA measures;
Described BSC sends and carries out TOA measurement message to described selected BTS/LMU, makes described selected BTS/LMU measure measurement result and return to described measurement result for target terminal;
Described BSC receives the measurement result that described selected BTS/LMU returns, and positions the positional information that calculates described target terminal according to described measurement result;
Described BSC sends location response message to described MSC, and described location response message is carried the positional information of described target terminal.
A base station controller, described base station controller comprises:
Receiver module, the locating request message sending for receiving moving exchanging center MSC;
Obtain and chosen module, for obtaining up arrival time difference U-TDOA align_type indication, selected U-TDOA locates required participation and arrives the base transceiver station BTS/ Location Measurement Unit LMU that time T OA measures;
The first sending module, carries out TOA measurement message to described selected BTS/LMU for sending, and makes described selected BTS/LMU measure measurement result and return to described measurement result for target terminal;
Computing module, the measurement result of returning for receiving described selected BTS/LMU, positions the positional information that calculates described target terminal according to described measurement result;
The second sending module, for sending location response message to described MSC, described location response message is carried the positional information of described target terminal.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
By BSC, receive after the locating request message of MSC transmission, obtain the indication of U-TDOA align_type, the BTS/LMU that the required participation in selected U-TDOA location TOA measures, and send execution TOA measurement message to selected BTS/LMU, it is measured and return measurement result target terminal, BSC positions according to measurement result the positional information that calculates target terminal again, need not participate in location by SMLC, and BSC can control whether adopt U-TDOA localization method.
Accompanying drawing explanation
Fig. 1 is the localization method flow chart providing in the embodiment of the present invention 1;
Fig. 2 is the location method information interaction figure providing in the embodiment of the present invention 2;
Fig. 3 is another information interaction of the localization method figure providing in the embodiment of the present invention 2;
Fig. 4 is the base station controller schematic diagram providing in the embodiment of the present invention 3.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1
Referring to Fig. 1, the present embodiment provides a kind of localization method, comprising:
101:BSC receives the locating request message that moving exchanging center MSC sends;
102:BSC obtains up arrival time difference U-TDOA align_type indication, and selected U-TDOA locates required participation and arrives BTS (Base Transceiver Station, the base transceiver station)/Location Measurement Unit LMU that time T OA measures;
103:BSC sends and carries out TOA measurement message to selected BTS/LMU, makes selected BTS/LMU measure measurement result return measurement result for target terminal;
104:BSC receives the measurement result that selected BTS/LMU returns, and positions the positional information that calculates target terminal according to measurement result;
105:BSC sends location response message to MSC, and location response message is carried the positional information of target terminal.
The present embodiment receives after the locating request message of MSC transmission by BSC, obtain the indication of U-TDOA align_type, the BTS/LMU that the required participation in selected U-TDOA location TOA measures, and send execution TOA measurement message to selected BTS/LMU, it is measured and return measurement result target terminal, BSC positions according to measurement result the positional information that calculates target terminal again, need not participate in location by SMLC, and BSC can control whether adopt U-TDOA localization method.
Embodiment 2
The present embodiment provides a kind of localization method, comprising:
201:MSC sends locating request message to a BSC, to start positioning flow;
Wherein, locating request message can be BSSAP-LE (Base Station System ApplicationLocation Services Extension, Base Station System Application Part positioning service expansion) Perform LocationRequest (Location Request) message.
Wherein, a BSC is the BSC in embodiment 1.
Within 202: the, a BSC obtains the indication of U-TDOA align_type, the BTS/LMU that the required participation in selected U-TDOA location TOA measures;
Concrete, BSC obtains the indication of U-TDOA align_type and has two kinds of implementations at least:
The first, sets in advance the configuration parameter of BSC, and it is U-TDOA align_type that acquiescence locate mode can be set;
The second, passs U-TDOA align_type by A oral instructions and indicates, and carries the indication of U-TDOA align_type in the Location Request that MSC sends, and BSC obtains U-TDOA align_type from Location Request.For example, the indication of the Location Type (align_type) in Location Request U-TDOA, i.e. Location Type=00000110U-TDOA.
Wherein, BTS/LMU represents BTS or LMU, and selected BTS/LMU has 2 at least.
The BTS/LMU that the one BSC required participation in selected U-TDOA location TOA measures specifically comprises:
The one BSC disposes community and participates in the BTS/LMU list that TOA measures, as shown in table 1, when a BSC gets the current community that needs the target terminal place of location according to the terminal iidentification carrying in locating request message (as IMSI) or cell ID, according to the cell name of this community or index, get the BTS/LMU that participates in TOA measurement.
Table 1
| Cell name or index | The BTS/LMU that TOA measures | Affiliated BSC |
| Cell-1 | BTS-1 | The one BSC |
| Cell-2 | BTS-2 | The one BSC |
| Cell-3 | LMU-1 | The one BSC |
| Cell-4 | BTS-3 | The 2nd BSC |
| Cell-5 | BTS-1 | The 2nd BSC |
| ...... | ...... | ...... |
203: the BSC send Perform (execution) TOA and measure message to selected BTS/LMU;
Concrete, according to the controlled entity under selected BTS/LMU, a BSC sends execution TOA measurement message has two kinds of implementations to selected BTS/LMU:
The first 203a, referring to Fig. 2, if the controlled entity under selected BTS/LMU is a BSC, a BSC directly sends TOA and measures message to selected BTS/LMU;
The second 203b, referring to Fig. 3, if the controlled entity under selected BTS/LMU is the 2nd BSC except a BSC, pass through without interface channel, the one BSC sends the first connectionless information CONNECTIONLESS INFORMATION to MSC, MSC forwards the first connectionless information to selected BTS/LMU by the 2nd BSC, carries and carry out TOA measurement message in the first connectionless information.
204: selected BTS/LMU measures for target terminal, obtains measurement result;
Wherein, target terminal can be MS (Mobile Station, travelling carriage), measures content and comprises: the information such as the plane of target MS or three-dimensional position, speed, the present embodiment does not limit.
Concrete, the channel resource information that BTS/LMU distributes according to the target terminal carrying in execution TOA measurement message, be selected in one or two above carrier waves under this BTS/LMU, by these carrier waves be tuned to corresponding frequency, at the beginning Measuring Time point of carrying out the appointment of TOA measurement message, start the upward signal of receiving target terminal, calculate the upward signal point time of advent, i.e. measurement result.
205: selected BTS/LMU reports a BSC by measurement result;
Corresponding with step 203, according to the controlled entity under selected BTS/LMU, selected BTS/LMU reports a BSC by measurement result two kinds of implementations:
The first 205a, corresponding with 203a, if the controlled entity under selected BTS/LMU is a BSC, selected BTS/LMU directly reports measurement result the one BSC;
The second 205b, corresponding with 203b, if the controlled entity under selected BTS/LMU is the 2nd BSC except a BSC, pass through without interface channel, selected BTS/LMU sends the second connectionless information CONNECTIONLESS INFORMATION to MSC by the 2nd BSC, MSC forwards the second connectionless information to a BSC, in the second connectionless information, carries measurement result.
Within 206: the, a BSC positions calculating according to measurement result, obtains the positional information of target terminal;
Concrete, difference between two between the measurement result that a BSC can report according to selected BTS/LMU, is used hyperbola scheduling algorithm to calculate the positional information of target terminal.As, every two differences form a Hyperbolic Equation, and the intersection point that two or more Hyperbolic Equations draw is the position of target terminal.
Within 207: the, a BSC sends location response message to MSC, and location response message is carried the positional information of target terminal;
Wherein, location response message can be BSSAP-LE (Base Station System ApplicationLocation Services Extension, Base Station System Application Part positioning service expansion) Perform LocationResponse (location response) message.
In addition, a BSC and the 2nd BSC also can set up interface channel, for transmitting above-mentioned location related signaling.
The present embodiment receives after the locating request message of MSC transmission by BSC, obtain the indication of U-TDOA align_type, the BTS/LMU that the required participation in selected U-TDOA location TOA measures, and send execution TOA measurement message to selected BTS/LMU, it is measured and return measurement result target terminal, BSC positions according to measurement result the positional information that calculates target terminal again, need not participate in location by SMLC, and BSC can control whether adopt U-TDOA localization method.
Embodiment 3
Referring to Fig. 4, the present embodiment provides a kind of base station controller, comprising:
Receiver module 301, the locating request message sending for receiving moving exchanging center MSC;
Obtain and chosen module 302, for obtaining up arrival time difference U-TDOA align_type indication, selected U-TDOA locates required participation and arrives the base transceiver station BTS/ Location Measurement Unit LMU that time T OA measures;
The first sending module 303, carries out TOA measurement message to selected BTS/LMU for sending, and makes selected BTS/LMU measure measurement result return measurement result for target terminal;
Computing module 304, the measurement result of returning for receiving selected BTS/LMU, positions the positional information that calculates target terminal according to measurement result;
The second sending module 305, for sending location response message to MSC, location response message is carried the positional information of target terminal.
Wherein, obtain with chosen module 302 and comprise:
Acquiring unit, for obtaining the indication of U-TDOA align_type from locating request message; Or, for obtain the indication of U-TDOA align_type from the acquiescence locate mode of self configuration parameter;
Selected unit, locates required participation for selected U-TDOA and arrives the base transceiver station BTS/ Location Measurement Unit LMU that time T OA measures.
Wherein, the first sending module 303 comprises: the first transmitting element or the second transmitting element;
The first transmitting element, if be base station controller for the controlled entity under selected BTS/LMU, directly send and carries out TOA measurement message to selected BTS/LMU;
The second transmitting element, if be the 2nd BSC except base station controller BSC for the controlled entity under selected BTS/LMU, BSC sends the first connectionless information to MSC, make MSC pass through the 2nd BSC and forward the first connectionless information to selected BTS/LMU, the first connectionless information carries carries out TOA measurement message.
Wherein, computing module 304 comprises receiving element and computing unit;
Receiving element, if be BSC for the controlled entity under selected BTS/LMU, BSC directly receives the measurement result that selected BTS/LMU returns; Or, if the controlled entity under selected BTS/LMU is the 2nd BSC except BSC, BSC receives the second connectionless information that MSC forwards, and two connectionless informations are that selected BTS/LMU sends to MSC by the 2nd BSC, and two connectionless informations carry measurement result;
Computing unit, for positioning the positional information that calculates target terminal according to measurement result.
The BSC that the present embodiment provides, with the BSC of embodiment 1, and a BSC of embodiment 2 belongs to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.
The present embodiment receives after the locating request message of MSC transmission by BSC, obtain the indication of U-TDOA align_type, the BTS/LMU that the required participation in selected U-TDOA location TOA measures, and send execution TOA measurement message to selected BTS/LMU, it is measured and return measurement result target terminal, BSC positions according to measurement result the positional information that calculates target terminal again, need not participate in location by SMLC, and BSC can control whether adopt U-TDOA localization method.
All or part of content in the technical scheme that above embodiment provides can realize by software programming, and its software program is stored in the storage medium can read, storage medium for example: the hard disk in computer, CD or floppy disk.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a localization method, is characterized in that, described method comprises:
Base station controller BSC receives the locating request message that moving exchanging center MSC sends;
Described BSC obtains up arrival time difference U-TDOA align_type indication, and selected U-TDOA locates required participation and arrives the base transceiver station BTS/ Location Measurement Unit LMU that time T OA measures;
Described BSC sends and carries out TOA measurement message to described selected BTS/LMU, makes described selected BTS/LMU measure measurement result and return to described measurement result for target terminal;
Described BSC receives the measurement result that described selected BTS/LMU returns, and positions the positional information that calculates described target terminal according to described measurement result;
Described BSC sends location response message to described MSC, and described location response message is carried the positional information of described target terminal.
2. localization method according to claim 1, is characterized in that, described BSC obtains up arrival time difference U-TDOA align_type indication and comprises:
Described BSC obtains described U-TDOA align_type indication from described locating request message;
Or described BSC obtains described U-TDOA align_type indication from the acquiescence locate mode of self configuration parameter.
3. localization method according to claim 1, is characterized in that, described BSC sends execution TOA measurement message and comprises to described selected BTS/LMU:
If the controlled entity under described selected BTS/LMU is described BSC, described BSC directly sends and carries out TOA measurement message to described selected BTS/LMU;
Or, if the controlled entity under described selected BTS/LMU is the 2nd BSC except described BSC, described BSC sends the first connectionless information to described MSC, make described MSC forward described the first connectionless information to described selected BTS/LMU by described the 2nd BSC, described the first connectionless information carries described execution TOA and measures message.
4. localization method according to claim 1, is characterized in that, the measurement result that the described selected BTS/LMU of described BSC reception returns comprises:
If the controlled entity under described selected BTS/LMU is described BSC, described BSC directly receives the measurement result that described selected BTS/LMU returns;
Or, if the controlled entity under described selected BTS/LMU is the 2nd BSC except described BSC, described BSC receives the second connectionless information that described MSC forwards, described the second connectionless information is that described selected BTS/LMU sends to described MSC by described the 2nd BSC, and described the second connectionless information carries described measurement result.
5. a base station controller, is characterized in that, described base station controller comprises:
Receiver module, the locating request message sending for receiving moving exchanging center MSC;
Obtain and chosen module, for obtaining up arrival time difference U-TDOA align_type indication, selected U-TDOA locates required participation and arrives the base transceiver station BTS/ Location Measurement Unit LMU that time T OA measures;
The first sending module, carries out TOA measurement message to described selected BTS/LMU for sending, and makes described selected BTS/LMU measure measurement result and return to described measurement result for target terminal;
Computing module, the measurement result of returning for receiving described selected BTS/LMU, positions the positional information that calculates described target terminal according to described measurement result;
The second sending module, for sending location response message to described MSC, described location response message is carried the positional information of described target terminal.
6. base station controller according to claim 5, is characterized in that, described in obtain with chosen module and comprise:
Acquiring unit, for obtaining described U-TDOA align_type indication from described locating request message; Or, for obtain described U-TDOA align_type indication from the acquiescence locate mode of self configuration parameter;
Selected unit, locates required participation for selected U-TDOA and arrives the base transceiver station BTS/ Location Measurement Unit LMU that time T OA measures.
7. base station controller according to claim 5, is characterized in that, described the first sending module comprises: the first transmitting element or the second transmitting element;
Described the first transmitting element, if be described base station controller for the controlled entity under described selected BTS/LMU, directly send and carries out TOA measurement message to described selected BTS/LMU;
Described the second transmitting element, if be the 2nd BSC except described base station controller BSC for the controlled entity under described selected BTS/LMU, described BSC sends the first connectionless information to described MSC, make described MSC forward described the first connectionless information to described selected BTS/LMU by described the 2nd BSC, described the first connectionless information carries described execution TOA and measures message.
8. base station controller according to claim 5, is characterized in that, described computing module comprises receiving element and computing unit;
Described receiving element, if be described base station controller BSC for the controlled entity under described selected BTS/LMU, described BSC directly receives the measurement result that described selected BTS/LMU returns; Or, if the controlled entity under described selected BTS/LMU is the 2nd BSC except described BSC, described BSC receives the second connectionless information that described MSC forwards, described the second connectionless information is that described selected BTS/LMU sends to described MSC by described the 2nd BSC, and described the second connectionless information carries described measurement result;
Described computing unit, for positioning the positional information that calculates described target terminal according to described measurement result.
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| CN103024757B (en) * | 2011-09-22 | 2017-08-08 | 中兴通讯股份有限公司 | LMU systems of selection and device |
| CN102573060A (en) * | 2012-02-22 | 2012-07-11 | 电信科学技术研究院 | Method and equipment for transmitting positioning information |
| CN102711036B (en) * | 2012-04-19 | 2015-07-01 | 广东亿迅科技有限公司 | Positioning method, positioning engine and logistics information management system |
| CN112866897B (en) * | 2019-11-08 | 2022-11-11 | 大唐移动通信设备有限公司 | Positioning measurement method, terminal and network node |
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| CN101622891A (en) * | 2006-09-19 | 2010-01-06 | 真实定位公司 | User plane uplink time difference of arrival (U-TDOA) |
| EP2207392A1 (en) * | 2005-06-10 | 2010-07-14 | TruePosition, Inc. | Advanced triggers for location-based service applications in a wireless location system |
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| CN1798430A (en) * | 2004-12-22 | 2006-07-05 | 华为技术有限公司 | Implement method for locating mobile station immobile communication system |
| EP2207392A1 (en) * | 2005-06-10 | 2010-07-14 | TruePosition, Inc. | Advanced triggers for location-based service applications in a wireless location system |
| CN101622891A (en) * | 2006-09-19 | 2010-01-06 | 真实定位公司 | User plane uplink time difference of arrival (U-TDOA) |
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